Mining Doc

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Real-Time Control in the Flotation Circuit: The Key to Stable Recovery

The flotation process is an unstable step in mineral processing. Small changes in feed density, pulp level, air flow, or reagents can quickly cause problems like overflowing cells, unstable froth, or lower recovery.

To avoid these issues, operators need reliable, real-time information to keep the process under control.

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Lase TVM 3D M (motion) Truck Volume Measurement

Dynamic load volume measurement on a new level

The LaseTVM-3D-M (MOTION) is revolutionizing logistics! The high-precision 3D laser measurement system from LASE Industrielle Lasertechnik GmbH enables automatic volume measurement during transit – ideal for materials such as sand, wood, ore or stone.

Highlights:

No stops – pure efficiency
Web portal for convenient remote access
Highly accurate (~2 % deviation)
Tamper-free – precise results!

With this technology, we create transparency and efficiency in the logistics chain.

Efficient, precise, innovative – LaseTVM-3D-M

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Blasting near homes demands precision delays, blast mats, and careful borehole design.

The engineering controls that relate to blasting near communities revolve around the reduction of the strength of the sources of vibration and airblast, the breakup of the blast energy into small pulses, and the improvement of confinement such that the energy will not be released to the environment.

The best strategy is always to optimize the blast design rather than fixing the effects of the blast afterward.

Does blast timing or confinement reduce vibration and noise more effectively? Share your thoughts in comments!

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Ultra-high grade ore pays handsomely but demands extreme selectivity, stability, and safety.

Mines in ultra-high-grade ore bodies operate differently from mines in regular ore zones because the intensity of the source term itself will be different: gamma rays, radon or radon progeny, and radioactive dust will be present, even waste rock or tailings will have enough radioactivity.

The operational difficulty in such a situation does not consist so much in ore extraction, but rather in maintaining strict control over exposure for workers, equipment, and subsequent ore processing.

Should high-grade zones be mined slowly for safety or fast for profit?

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In-situ leaching promises mining without waste rock or tailings; but challenges remain.

Solution mining refers to an extraction process whereby a fluid solution is injected into the ore body, dissolved, and extracted again from the underground ore bed.

In scientific literature, the technique is now viewed not only as a specialized process but also as a potentially serious rival to standard mining for specific ore bodies. These include uranium, some copper formations, as well as some rare earths or salt deposits.

Is in-situ leaching ready to replace conventional open-pit mining widely?

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Rio Tinto commissions $1.5 billion low-carbon smelter expansion in Quebec

Rio Tinto (https://t.co/Qu6dhv34Bf), (RIO.L), said on Friday it has started commissioning its $1.5 billion low-carbon aluminium smelter expansion in the Canadian ‌province of Quebec.

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Skills audits measure what miners know; training needs analysis finds what they're missing.

The skill audit can be said to be an assessment activity carried out in order to determine the skills currently possessed by employees, whereas the training need analysis is more of a decision process used to develop a training plan from the results of such an audit exercise by comparing the current capabilities with the required capabilities. Essentially, the skill audit acts as input for the training need analysis exercise.

What is the difference between a skills audit and a training needs analysis and how are both applied in mining HR? Share your ideas in comments!

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Mining on indigenous land requires more than consent; it demands shared opportunity and respect.

Legal and ethical obligations toward Indigenous peoples' rights in recruitment and procurement exist beyond merely meeting certain quotas and sourcing locally.

Indeed, companies have to refrain from discriminatory practices, engage in good-faith consultations, obtain consent in cases where indigenous territories and their rights are at stake, and foster economic engagement via employment, contracting, and suppliers.

What are the legal and ethical obligations of mining companies regarding indigenous employment and procurement? Share your ideas in comments!

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The LOM plan charts every ton, cost, and dollar; decades before the first blast.

The LOM plan is the blueprint of operations for the entire life of a mine project; it determines the schedule for the extraction of mineral, the pace of production, assumptions on processing, capital expenditure, and time frame until closure of the operation. The LOM plan is essentially the officially approved long-term plan for the mine that is developed in view of more immediate mine plans on an annual basis when new information comes to light.

What is a life-of-mine (LOM) plan and how does it drive financial planning in a mining company? Share your ideas in comments!

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Political instability, infrastructure gaps, and legal uncertainty raise mining finance costs dramatically.

Projects involving mining activities in emerging nations are subject to a series of nonfinancial risks that typically influence the discount rate, interest spread on loans, insurance premiums, and required returns, thereby increasing the cost of capital when such risks are high.

These include political instability, policy uncertainty, institutional weakness, lack of infrastructure, foreign exchange and macroeconomic risks, conflict and security risks, environmental and social risks, and challenging financing terms related to commodity price fluctuations.

Does political risk or infrastructure gap raise capital costs more? Share your ideas in comments!

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Push-backs grow pits downward; cut-backs widen them. Sequencing decides your mine's future.

"Push back" and "cut back" are terms that are sometimes applied almost synonymously in open-pit mine planning, but, strictly speaking, push back means "a phase of mining planned for implementation at a certain time" whereas cut back is often a reference to the actual process of moving the pit wall closer to the ore body.

In other words, push back is an organized mining phase while cut back describes the cutting or extension of the pit wall into the ore body that results in such a phase.

Should expansion prioritize vertical push-backs or lateral cut-backs first? Share your ideas in comments!

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Air is the lifeline underground; move it right or risk everything.

An efficient ventilation survey entails determining the amount of air, its pressure, temperature, moisture content, and leakage rates, and from these readings, identifying losses and confirming whether the proper ventilation rate is provided.

The main ventilation circuit of a large mine needs to be established as a through-flow network, one that has adequate intake air, little resistance, and mostly parallels in the ventilation network. Here are the crucial steps to conduct a ventilation survey for a large underground mine.

Should ventilation design prioritize safety, or energy efficiency and costs? Share your ideas in comments!

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Rhosonics Introduces New Company Video

Excited to share our new company video!

A quick look into who we are, what we do, and how Rhosonics helps industries optimize their processes through measurement technology.

Driven by expertise, teamwork, and a passion for innovation, we create sustainable solutions for customers around the world, together with our valued partners.

Proud of our people, our technology, and the future we are building together.

Watch the video below!

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The ore-waste contact separates profit from loss; finding it accurately changes everything.

This line is vital since it forms the natural and economical line that distinguishes the part of the deposit that can be exploited at a profit from that which needs to remain undisturbed or moved to a waste dump. The precision of the contact will affect the amount of ore, dilution, recovery, mining operations, and reserves estimation.

Firstly, this contact is relevant due to the fact that it determines whether the minerals are considered ores or wastes in estimating resources and reserves. The erroneous placement of the contact results in an incorrect estimation of the reserves and the mining operation plan.

Should grade control sampling or geological mapping define the ore-waste boundary? Share your thoughts in comments!

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Let’s talk about Tanami Gold mine

In the vast region of the Northern Territory in Australia, you will find the Tanami Gold Mine, a masterpiece of modern engineering and geology. Being the second-largest underground gold mine in Australia and belonging to Newmont Corporation, the Tanami Gold Mine is a mine of high productivity and durability.

Which project do you want us to share with you next time? Tell us in comments section!

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Gold hides in faults, folds, and alteration zones; mining must chase it intelligently.

The variation in grade within a gold ore body is influenced by the genesis of the deposit itself. Gold is typically deposited through hydrothermal fluids flowing through fractures and faults in the host rock, and this results in rapid fluctuations in grade based on whether or not these structural features exist and intersect.

The influence of structural controls can have a major impact on grade variation. High-grade gold deposits frequently occur in shoots or vein swarms, as well as at intersections where there was significant flow, whereas the adjacent rock will yield significantly less in terms of gold content. This leads to highly variable sample values even when taken from a relatively small distance apart.

Should mining follow grade or prioritize dilution control and stability? Share your ideas in comments!

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Today's graduate mining engineer can choose operations, consulting, finance, tech, or research.

A graduate mining engineer can move into several strong pathways: operations, mine planning, drill-and-blast, geotechnical, processing, HSE/environment, consulting, project management, and eventually leadership roles such as superintendent or mine manager.

Modern mining is also creating more openings in automation, digital mining, sustainability, and remote operations.

Does site operations or technical consulting build a better career foundation? Share your thoughts in comments!

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How can a mining rock mass model improve slope stability assessment?

A comprehensive three-dimensional geotechnical model is fundamental to any pit slope design. This paper details a methodology for the collection, processing and spatial interrogation of geotechnical data that enables a robust three-dimensional Mining Rock Mass Model (MRMM) to be constructed.

The modelling techniques used to create the MRMM have been refined through their use on over forty mining projects that range from greenfields studies to mature producing mines. Case studies that illustrate the use of the MRMM and its versatility for the appreciation of geotechnical data as well as timely integration into the mine planning process are presented for a variety of open pit applications.

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Paper by C.R.W. Seymour Dempers & Seymour Pty Ltd, Australia G.D. Dempers Dempers & Seymour Pty Ltd, Australia P.A. Jenkins Dempers & Seymour Pty Ltd, Australia.

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Sensors, data, and algorithms now move more rock than shovels ever could alone.

The digitalization of the mining industry has gone from a theoretical future idea to today’s reality. With the increase in the demand for minerals and tougher regulations when it comes to mining processes and safety issues, the industry has been forced to embrace Industry 4.0.

Does digitalization and Industry 4.0 have a greater impact on short-term operational efficiency through real-time data and automation, or on long-term mine planning through better resource modelling and predictive maintenance strategies? Share your ideas in comments!

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Any reduction in the energy required for crushing and grinding is going directly to your bottom line. Comminution circuit optimization is not just about maximizing production; it is about increasing efficiency of ore comminution.

The reduction of rock particles into an optimal particle size for mining of minerals is an important component in current mining operations. But comminution as it is known has been characterized by lack of efficiency. The current trend of having difficult ores to mine and expensive electricity has necessitated a move to optimal circuits in mining.

In an effort to minimize specific energy usage in a comminution circuit, is HPGR technology more effective at saving energy than optimizing cone crushers, ball mills, and classifiers in a standard crushing-ball mill circuit? Share your thoughts in comments!

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